L2 Gym - Cardiorespiratory system

What is the primary function of the cardiovascular system?

• To produce hormones

• To transport oxygen and nutrients

• To digest food

• To regulate body temperature

How many chambers does the heart have?

• Two

• Three

• Four

• Five

Which part of the heart receives blood from the body?

• Left ventricle

• Right atrium

• Left atrium

• Right ventricle

What is the role of the ventricles in the heart?

• To receive blood from the veins

• To pump blood into the arteries

• To filter blood

• To store blood

Why does the left ventricle have larger muscular walls than the right ventricle?

• It pumps blood to the adjacent lungs

• It pumps blood to the furthest parts of the body

• It stores more blood

• It receives blood from the body

Where is the sinoatrial node (SAN) located?

• In the left ventricle

• In the wall of the right atrium

• In the aorta

• In the pulmonary artery

What is the measure of the force that blood applies to the walls of the arteries as it flows through them?

• Blood pressure

• Cardiac output

• Heart rate

• Respiratory rate

What are the two numbers in a blood pressure reading called?

• Systolic and diastolic pressures

• Cardiac and respiratory pressures

• Arterial and venous pressures

• High and low pressures

What is the pressure exerted on the artery walls when the heart is in a relaxed state?

• Diastolic blood pressure

• Systolic blood pressure

• Cardiac output

• Peripheral resistance

What happens to blood vessels feeding the muscles during exercise?

• They vasoconstrict

• They vasodilate

• They remain unchanged

• They collapse